'use strict';
const path = require('path');
//const webpack = require('webpack')
const CopyWebpackPlugin = require('copy-webpack-plugin')

function resolve(dir) {
    return path.join(__dirname, dir);
}

const CompressionPlugin = require('compression-webpack-plugin');
const MonacoWebpackPlugin = require('monaco-editor-webpack-plugin');

const name = process.env.VUE_APP_TITLE || '物联网平台'; // 网页标题

const port = process.env.port || process.env.npm_config_port || 1025; // 端口
//const cesiumSourcePath = 'node_modules/mars3d-cesium/Build/Cesium/' // cesium库安装目录
//const cesiumRunPath = './mars3d-cesium/' // cesium运行时路径
// vue.config.js 配置说明
//官方vue.config.js 参考文档 https://cli.vuejs.org/zh/config/#css-loaderoptions
// 这里只列一部分，具体配置参考文档
module.exports = {
    runtimeCompiler: true,
    // 部署生产环境和开发环境下的URL。
    // 默认情况下，Vue CLI 会假设你的应用是被部署在一个域名的根路径上
    // 例如 https://www.yanfankeji.com/。如果应用被部署在一个子路径上，你就需要用这个选项指定这个子路径。例如，如果你的应用被部署在 https://www.yanfankeji.com/admin/，则设置 baseUrl 为 /admin/。
    publicPath: process.env.NODE_ENV === 'production' ? '/' : '/',
    // 在npm run build 或 yarn build 时 ，生成文件的目录名称（要和baseUrl的生产环境路径一致）（默认dist）
    outputDir: 'dist',
    // 用于放置生成的静态资源 (js、css、img、fonts) 的；（项目打包之后，静态资源会放在这个文件夹下）
    assetsDir: 'static',
    // 是否开启eslint保存检测，有效值：ture | false | 'error'
    lintOnSave: process.env.NODE_ENV === 'development',
    // 如果你不需要生产环境的 source map，可以将其设置为 false 以加速生产环境构建。
    productionSourceMap: false,
    // webpack-dev-server 相关配置
    devServer: {
        host: '0.0.0.0',
        port: port,
        open: true,
        proxy: {
            // detail: https://cli.vuejs.org/config/#devserver-proxy
            [process.env.VUE_APP_BASE_API]: {
                target: process.env.VUE_APP_SERVER_API_URL,
                changeOrigin: true,
                pathRewrite: {
                    ['^' + process.env.VUE_APP_BASE_API]: '',
                },
            },
        },
        disableHostCheck: true,
    },

    css: {
        loaderOptions: {
            sass: {
                sassOptions: { outputStyle: 'expanded' },
            },
        },
    },
    configureWebpack:{

        // externals: {
        //     'vue': "Vue",
        //     'vue-router': 'VueRouter',
        //     'ElementUI': "ELEMENT",
        //     'axios':'axios'
        // },
        name: name,
        resolve: {
            alias: {
                '@': resolve('src'),
            },
        },

        plugins: [
            // 标识cesium资源所在的主目录，cesium内部资源加载、多线程等处理时需要用到
            // new webpack.DefinePlugin({
            //     CESIUM_BASE_URL: JSON.stringify(path.join(config.output.publicPath, cesiumRunPath))
            // }),
            // new CopyWebpackPlugin([
            //   { from: 'node_modules/@liveqing/liveplayer/dist/component/crossdomain.xml' },
            //   { from: 'node_modules/@liveqing/liveplayer/dist/component/liveplayer.swf' },
            //   { from: 'node_modules/@liveqing/liveplayer/dist/component/liveplayer-lib.min.js', to: 'js/' },
            // ]),
            // Cesium相关资源目录需要拷贝到系统目录下面（部分CopyWebpackPlugin版本的语法可能没有patterns）
            // new CopyWebpackPlugin({
            //     patterns: [
            //         { from: path.join(cesiumSourcePath, 'Workers'), to: path.join(config.output.path, cesiumRunPath, 'Workers') },
            //         { from: path.join(cesiumSourcePath, 'Assets'), to: path.join(config.output.path, cesiumRunPath, 'Assets') },
            //         { from: path.join(cesiumSourcePath, 'ThirdParty'), to: path.join(config.output.path, cesiumRunPath, 'ThirdParty') },
            //         { from: path.join(cesiumSourcePath, 'Widgets'), to: path.join(config.output.path, cesiumRunPath, 'Widgets') }
            //     ],


            // },

            // ),
            new CopyWebpackPlugin([
                { from: 'node_modules/@liveqing/liveplayer/dist/component/crossdomain.xml' },
                { from: 'node_modules/@liveqing/liveplayer/dist/component/liveplayer.swf' },
                { from: 'node_modules/@liveqing/liveplayer/dist/component/liveplayer-lib.min.js', to: './js' },
            ]),
            // http://doc.yanfankeji.com/yanfan-vue/other/faq.html#使用gzip解压缩静态文件
            new CompressionPlugin({
                cache: false, // 不启用文件缓存
                test: /\.(js|css|html)?$/i, // 压缩文件格式
                filename: '[path].gz[query]', // 压缩后的文件名
                algorithm: 'gzip', // 使用gzip压缩
                minRatio: 0.8, // 压缩率小于1才会压缩
            }),
            // new MonacoWebpackPlugin(),
        ],
    },
    chainWebpack(config) {


        config.plugins.delete('preload'); // TODO: need test
        config.plugins.delete('prefetch'); // TODO: need test

        // set svg-sprite-loader
        config.module.rule('svg').exclude.add(resolve('src/assets/icons')).end();
        config.module
            .rule('icons')
            .test(/\.svg$/)
            .include.add(resolve('src/assets/icons'))
            .end()
            .use('svg-sprite-loader')
            .loader('svg-sprite-loader')
            .options({
                symbolId: 'icon-[name]',
            })
            .end();

        config.when(process.env.NODE_ENV !== 'development', (config) => {
            config
                .plugin('ScriptExtHtmlWebpackPlugin')
                .after('html')
                .use('script-ext-html-webpack-plugin', [
                    {
                        // `runtime` must same as runtimeChunk name. default is `runtime`
                        inline: /runtime\..*\.js$/,
                    },
                ])
                .end();
            config.optimization.splitChunks({
                chunks: 'all',
                cacheGroups: {
                    libs: {
                        name: 'chunk-libs',
                        test: /[\\/]node_modules[\\/]/,
                        priority: 10,
                        chunks: 'initial', // only package third parties that are initially dependent
                    },
                    elementUI: {
                        name: 'chunk-elementUI', // split elementUI into a single package
                        priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
                        test: /[\\/]node_modules[\\/]_?element-ui(.*)/, // in order to adapt to cnpm
                    },
                    commons: {
                        name: 'chunk-commons',
                        test: resolve('src/components'), // can customize your rules
                        minChunks: 3, //  minimum common number
                        priority: 5,
                        reuseExistingChunk: true,
                    },
                },
            });
            config.optimization.runtimeChunk('single'),
            {
                from: path.resolve(__dirname, './public/robots.txt'), //防爬虫文件
                to: './', //到根目录下
            };
        });

        config.module
            .rule('ymls')
            .test(/\.yml$/)
            .use('url-loader')
            .loader('url-loader')
            .end();

        config.plugin('monaco').use(new MonacoWebpackPlugin());
    },
};
